CN102172012A - Image processing apparatus and color processing method - Google Patents
Image processing apparatus and color processing method Download PDFInfo
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- CN102172012A CN102172012A CN2009801394741A CN200980139474A CN102172012A CN 102172012 A CN102172012 A CN 102172012A CN 2009801394741 A CN2009801394741 A CN 2009801394741A CN 200980139474 A CN200980139474 A CN 200980139474A CN 102172012 A CN102172012 A CN 102172012A
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- chromatic value
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/46—Colour picture communication systems
- H04N1/56—Processing of colour picture signals
- H04N1/60—Colour correction or control
- H04N1/603—Colour correction or control controlled by characteristics of the picture signal generator or the picture reproducer
- H04N1/6033—Colour correction or control controlled by characteristics of the picture signal generator or the picture reproducer using test pattern analysis
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/46—Colour picture communication systems
- H04N1/56—Processing of colour picture signals
- H04N1/60—Colour correction or control
- H04N1/6083—Colour correction or control controlled by factors external to the apparatus
- H04N1/6091—Colour correction or control controlled by factors external to the apparatus by environmental factors, e.g. temperature or humidity
Abstract
It is difficult to appropriately estimate the colorimetric values of an arbitrary patch at a desired temperature with respect to a medium containing a fluorescent whitening agent in consideration of the influence of the fluorescent whitening agent. A target temperature and media type are designated (S601, S602), patches of a plurality of colors are formed on a set medium, and a temperature immediately after fixing (second temperature), patch colorimetric values, and medium white colorimetric values are acquired (S606, S607). Medium white colorimetric values at the target temperature are generated based on the acquired medium white colorimetric values and medium white colorimetric values at a first temperature, which are acquired in advance (S608). Patch colorimetric values at the target temperature are estimated based on the generated medium white colorimetric values and patch colorimetric values.
Description
Technical field
The present invention relates to image processing equipment and color processing method, relate in particular to the image processing equipment and the color processing method that come image correcting data based on the chromatic value of sheet (patch).
Background technology
Common printing device is used color conversion look-up table (being designated hereinafter simply as LUT) in order to export desired color.This color conversion LUT comprises the LUT that uses when keeping printing device is in the required calibration of steady state and the LUT that uses during as the color matching of representative with ICC configuration file (profile) etc.In order to create these color conversion LUT, the sheet of the printing device output multiple color that is configured to for example shown in Figure 9.Notice that shown in the Reference numeral among Fig. 9 91, a foursquare chequer is corresponding with a sheet.By using the sheet of measuring these multiple colors such as the colorimeter of spectrocolorimeter etc. to obtain chromatic value, and be relative to each other to join and create color conversion LUT by install dependence value and non-device dependence value.
The most of medium that uses during printing comprises the absorption ultraviolet ray and sends the fluorescent whitening agent of the fluorescence in (particularly in the bluish violet zone) in the visibility region with the increase white content.As shown in figure 10, the fluorescent brightening effect of fluorescent whitening agent increases/reduces according to temperature.Owing to this reason, the chromatic value that exports the printed material on the medium that comprises fluorescent whitening agent to also changes according to temperature.Because the variable quantity of the chromatic value of the printed material that the influence of the fluorescent whitening agent that comprises in the medium causes is maximum on medium white (mediumwhite) part, and along with such as the amount increase of the color material of black and toner etc. and reduce.That is to say that the variable quantity of chromatic value is big on highly sensitive highlighted part of the mankind's color-aware and low saturation part.
Thereby for the color with high accuracy management printing device, the temperature when needing management is always maintained at constant target temperature (for example, as 23 ℃ of the normal temperature in the colour examining field; JIS Z8703).Yet with regard to cost, this method is unrealistic.Thereby, need change the method for predicting the chromatic value under the specific objective temperature by the chromatic value that correction depends on temperature.
Depend on the method that the chromatic value of temperature changes as correction, proposed following method.
In one approach,, calculate the spectral reflectivity variable quantity of each wavelength of per unit temperature interval in advance at each painted test portion (color sample), and the spectral reflectivity (for example, referring to patent documentation 1) under the prediction preferred temperature.
In other method, at each painted test portion, the absorption coefficient in the Kubelka-Munk formula of each wavelength of calculating per unit temperature interval and the variable quantity of scattering coefficient, and the spectral reflectivity (for example, referring to patent documentation 2) under the prediction preferred temperature.
[patent documentation 1] Japan Patent 3776492
[patent documentation 2] Japan Patent 3555706
Yet, in the method for the spectral reflectivity variable quantity of each wavelength of patent documentation 1 described calculating per unit temperature interval, can not predict the spectral reflectivity of all combinations of the device value that printing device can be exported.
Described painted test portion calculates in the method for variable quantity of the absorption coefficient of each wavelength of per unit temperature interval and scattering coefficient at each at patent documentation 2, can recently predict the spectral reflectivity of blend color according to the mixing of painted test portion.Yet, because the printed material that has passed through common halftone process has uneven painted, the therefore spectral reflectivity of all combinations of the device value that also is difficult to predict that printing device can be exported for this method.
Because these two kinds of methods are not all considered the influence of the fluorescent whitening agent that comprises in the substrate (print media) of painted test portion, therefore comprise the printed material of the medium of fluorescent whitening agent for use, these two kinds of methods all can not suitably be proofreaied and correct chromatic value.
Summary of the invention
Made the present invention with the solution foregoing problems, and the invention provides following image processing equipment and color processing method: this image processing equipment and color processing method can suitably be estimated the chromatic value of the sheet of random color under the preferred temperature at the medium that comprises fluorescent whitening agent.
According to aspects of the present invention, a kind of image processing equipment of the present invention comprises following configuration.
That is to say that a kind of image processing equipment comprises: the first medium chromatic value obtains parts, is used to obtain by measure the first medium chromatic value that medium obtained that comprises fluorescent whitening agent under first temperature; The second medium chromatic value obtains parts, is used to obtain by measure the second medium chromatic value that described medium obtained under second temperature; The sheet chromatic value obtains parts, is used to obtain by measure the reference plate chromatic value that sheet obtained of the multiple color that forms on described medium under described second temperature; Target temperature obtains parts, is used to obtain target temperature; Medium chromatic value estimation section is used for based on described first medium chromatic value and the described second medium chromatic value, estimates the 3rd medium chromatic value that is obtained when measuring described medium under described target temperature; And sheet chromatic value estimation section, be used for based on the described second medium chromatic value, described the 3rd medium chromatic value and described reference plate chromatic value, estimate the sheet chromatic value that is obtained when when measuring the sheet of the described multiple color that on described medium, forms under the described target temperature.
According to a further aspect in the invention, a kind of image processing equipment of the present invention, comprise: holding member is used to keep by measure first chromatic value and second chromatic value that sheet obtained of the multiple color that forms on the medium that is comprising fluorescent whitening agent respectively under first temperature and second temperature; Target temperature obtains parts, is used to obtain target temperature; And sheet chromatic value estimation section, be used for described first chromatic value and described second chromatic value that keep based on described holding member, the sheet chromatic value that obtains when estimating the sheet when the described multiple color that on described medium, forms in measurement under the described target temperature.
For example, described second temperature be adjacent after forming the sheet of described multiple color the temperature of medium.
According to the present invention, can suitably estimate the chromatic value of any sheet under the preferred temperature at the medium that comprises fluorescent whitening agent with above configuration.Therefore, can apply suitable image rectification to the view data that will form image.
By below with reference to the explanation of accompanying drawing to exemplary embodiments, it is obvious that further feature of the present invention will become.
Description of drawings
Fig. 1 illustrates the block diagram of the configuration of printer apparatus according to an embodiment of the invention;
Fig. 2 is the block diagram that illustrates according to the detailed configuration of the chromatic value temperature correction unit of present embodiment;
Fig. 3 is the figure of the example of the data that keep in the memory cell that illustrates according to present embodiment;
Fig. 4 is the block diagram that illustrates according to the detailed configuration of the designating unit of present embodiment;
Fig. 5 illustrates the figure that has realized according to the example of the UI of the designating unit of present embodiment;
Fig. 6 is that the calibration LUT that illustrates according to present embodiment creates the flow chart of handling;
Fig. 7 is the block diagram that illustrates according to the configuration of the printer apparatus of second embodiment;
Fig. 8 is that the color matching LUT that illustrates according to second embodiment creates the flow chart of handling;
Fig. 9 is the figure that the example of common sheet is shown;
Figure 10 is the figure that the medium white spectral reflectivity under a plurality of temperature is shown; And
Figure 11 is the figure of the example of the data that keep in the memory cell that illustrates according to second embodiment.
Embodiment
Describe the present invention below with reference to accompanying drawing in detail by the preferred embodiments of the present invention.Notice that the described configuration of following examples only is an example, and the invention is not restricted to illustrated configuration.
First embodiment
Present embodiment will illustrate the chromatic value temperature correction as the color processing method in the electro photography printer apparatus that color sensor has been installed.Supposing that the medium of handling in the present embodiment comprises absorbs ultraviolet ray and sends fluorescence in the visibility region to increase the fluorescent whitening agent of white content.In addition, suppose comprising under the light source of ultraviolet region medium and the sheet that forms on this medium are carried out colour examining.That is to say that the various chromatic values of Huo Deing comprise the influence of fluorescent whitening agent in the present embodiment.
Equipment disposition
Fig. 1 is the block diagram that illustrates according to the configuration of the printer apparatus of present embodiment.Printer apparatus 1 is being exported the sheet of calibrating usefulness before the print job or during print job, and uses built-in colour examining transducer to measure the chromatic value of these sheets.Then, equipment 1 is created based on these chromatic values and is upgraded checking list, keeps the constant colorrendering quality of equipment thus.At this moment, a plurality of output chips of calibration usefulness have adjacent high temperature after photographic fixing, and the chromatic value of these output chips changes.Therefore, present embodiment is characterised in that these chromatic values is proofreaied and correct.
With the functional unit rough classification of printer apparatus 1 is controller unit 11 and engine unit 12.Controller unit 11 comprises color matching unit 111, alignment unit 112, calibration LUT generation unit 113 and chromatic value temperature correction unit 114.Notice that controller unit 11 comprises various other functional units that are associated with image processing, but will not provide the explanation with the not directly related unit of present embodiment.
As the characteristic feature of present embodiment, chromatic value temperature correction unit 114 is by the variations in temperature of correcting sheet chromatic value, the chromatic value under the estimating target temperature.
Chromatic value under the target temperature after calibration LUT generation unit 113 use chromatic value temperature correction unit 114 are proofreaied and correct generates the calibration LUT 1121 in the alignment unit 112.
On the other hand, engine unit 12 comprises fixation unit 121, temperature sensor unit 122 and color sensor unit 123.Notice that engine unit 12 is included in and forms employed various other functional units of image on the medium, but will not provide the explanation with the not directly related unit of present embodiment.
The detailed configuration of chromatic value temperature correction unit 114 below will be described.As shown in Figure 2, chromatic value temperature correction unit 114 comprises designating unit 21, memory cell 22 and arithmetic element 23.
As shown in Figure 4, designating unit 21 comprises target temperature designating unit 41 and media type designating unit 42.Target temperature designating unit 41 is indicated based on the user and is specified desired target temperature.As the example of target temperature, use 23 ℃ (JIS Z8703) as the normal temperature in the colour examining field.The media type that uses when media type designating unit 42 specifies in the sheet of exporting the multiple color of calibrating usefulness.For example, can indicate intended target temperature and media type according to the user, realize designating unit 21 by on the front panel of PC or printer, showing user interface (UI) shown in Figure 5 thereby making.
As shown in Figure 3, memory cell 22 storages generate data 31, measurement data 32 and default chroma data 33.These three classes data include temperature, CMYK value and spectral reflectance values.Generate the chromatic value under the target temperature that data 31 comprise that chromatic value temperature correction unit 114 generates.Measurement data 32 comprises the measured value that temperature sensor unit 122 and color sensor unit 123 obtain.Default chroma data 33 is included in the medium white data of the various media of measuring in advance under a plurality of temperature.
Notice that a plurality of temperature in the default chroma data 33 for example comprise, adjacent temperature after photographic fixing etc. during as 23 ℃ (JIS Z8703) of the normal temperature in the colour examining field and the formation of the image in the printer apparatus 1.
Calibration LUT creates and handles
The generation that calibration LUT 1121 in the printer apparatus 1 of present embodiment is described below with reference to the flow chart of Fig. 6 is handled.
In step S601, the user uses the target temperature designating unit 41 intended target temperature T in the chromatic value temperature correction unit 114
tIn step S602, the medium that uses when user's working medium type designating unit 42 is specified calibration.Whether be default medium, be whether specified medium is the medium of being stored as default chroma data 33 in memory cell 22 by the medium of in step S603, checking appointment in step S602, make control according to condition carry out branch.That is to say that if specified medium is default medium, then this processing skips to step S606; Otherwise this processing enters step S604.
In step S604, with the specified medium transport of placing on the printer apparatus 1 to the position (measuring position) that can carry out the measurement of temperature sensor unit 122 and color sensor unit 123.In step S605, first temperature T is measured in temperature sensor unit 122
M1As medium temperature, and color sensor unit 123 obtains the medium white chromatic value PW on this medium
M1(λ).First temperature that will get access in this step and medium white chromatic value are stored in the memory cell 22 as the first medium chromatic value 321 in the measurement data 32.Because this first temperature T
M1Be not subjected to the thermal impact that adds of fixation unit 121, so this first temperature T
M1Not high (this first temperature T
M1Low).
In step S606, based on for example forming the sheet data of the multiple color of calibration usefulness at medium from the data of PC output, and with the measuring position of this medium transport to these transducers.
In step S607, second temperature T is measured in temperature sensor unit 122
M2As adjacent temperature after sheet forms.Equally, color sensor unit 123 obtain adjacent after sheet forms the white chromatic value PW of the medium on this medium
M2(λ) with sheet chromatic value R
M2(λ).Under the situation of default medium, in this step, need not to measure second temperature and medium white chromatic value.Second temperature T that will in this step, get access to
M2With medium white chromatic value PW
M2(λ) be stored in the memory cell 22 as the second medium chromatic value 322 in the measurement data 32.Equally, with sheet chromatic value R
M2(λ) be stored as reference plate chromatic value 323.Because this second temperature T
M2Be subjected to the thermal impact that adds of fixation unit 121, so this second temperature T
M2High.
In step S608, arithmetic element 23 generates the 3rd medium chromatic value PW
t(λ) conduct is at target temperature T
tUnder medium white chromatic value.Then, arithmetic element 23 is with the 3rd medium chromatic value PW
t(λ) be stored in the memory cell 22 as the medium chromatic value 311 that generates in the data 31.The 3rd medium chromatic value PW
t(λ) estimate when under target temperature, measuring specified medium the chromatic value that obtains.In the present embodiment, under the hypothesis of medium white chromatic value linear change, carry out this estimation computing along with variations in temperature.More specifically, whether be that default medium uses following formula according to specified medium.
When specified medium is when presetting medium, to use following formula (1).
As the parameter in the formula (1), the default chroma data 33 of use conduct remains on the first medium chromatic value 331 and the second medium chromatic value 332 in the memory cell 22.More specifically, use first temperature T
1, second temperature T
2, the white of the medium under this first temperature spectral reflectivity PW
1(λ) and the medium white spectral reflectivity PW under this second temperature
2(λ).
On the other hand, when specified medium is not default medium, use following formula (2).
As the parameter in the formula (2), use as measurement data 32 and remain on the first medium chromatic value 321 and the second medium chromatic value 322 (measured value among step S605 and the S607) in the memory cell 22.That is to say, use as the first medium chromatic value 321, first temperature T
M1With the medium white spectral reflectivity PW under this first temperature
M1(λ).Equally, use as the second medium chromatic value 322, second temperature T
M2With the medium white spectral reflectivity PW under this second temperature
M2(λ).
Even when specified medium is default medium, the chromatic value in also can applying step S607 is as the second medium chromatic value under second temperature and this temperature.In this case, by revising the computing formula that above formula (1) obtains the 3rd medium chromatic value under the target temperature.That is to say, utilize T
M2And PW
M2(λ) T in the difference replacement formula (1)
2And PW
2(λ).
In step S609, arithmetic element 23 is used the 3rd medium chromatic value PW that calculates as mentioned above
t(λ), the sheet chromatic value R under the generation target temperature Tt
t(λ).The sheet chromatic value R that will in this step, generate
t(λ) be stored in turn in the memory cell 22 as the sheet chromatic value 312 that generates in the data 31.Sheet chromatic value R
t(λ) estimate when under target temperature, measuring the sheet that forms on the specified medium the chromatic value that obtains.Estimate computing as this, for example, use following formula (3).
As the parameter in the formula (3), use as measurement data 32 remain in the memory cell 22, the second medium chromatic value 322 and reference plate chromatic value 323 (measured value among the step S607).That is to say, use the medium white spectral reflectivity PW under second temperature
M2(λ) with sheet spectral reflectivity R
M2(λ).
In step S610, the generation of the sheet chromatic value under the target temperature among all sheet repeating step S609 is handled.
When all sheets are finished the generation of the sheet chromatic value under the target temperature, in step S611, create calibration LUT 1121.More specifically, calibration LUT generation unit 113 is created new calibration LUT 1121 based on the sheet chromatic value 312 of the multiple color under the target temperature of being stored in the generation data 31 in the memory cell 22.In step S612, upgrade alignment unit 112 by this new calibration LUT 1121.
As mentioned above, according to present embodiment, obtain medium chromatic value under first temperature and the medium chromatic value under second temperature explicitly with the medium that comprises fluorescent whitening agent, and with this medium on the sheet of the multiple color that forms obtain reference plate chromatic value under second temperature explicitly.The sheet chromatic value that will obtain during the sheet then, estimating under desired target temperature, to form on the measuring media based on these medium chromatic values that get access to and reference plate chromatic value.Because the chromatic value of present embodiment has reflected the influence of the fluorescent whitening agent that comprises in the medium, therefore can be by upgrade the state that calibration LUT comes to keep with high accuracy printer apparatus based on the sheet chromatic value that estimates.
Second embodiment
Below will illustrate according to a second embodiment of the present invention.Equally, identical with first embodiment in a second embodiment, carry out the chromatic value temperature correction in the electro photography printer apparatus that color sensor has been installed.
Equipment disposition
Fig. 7 is the block diagram that illustrates according to the configuration of the printer apparatus of second embodiment.In Fig. 7, identical Reference numeral is represented the identical assembly of assembly in the configuration shown in Figure 1 with first embodiment.Printer apparatus 2 shown in Figure 7 keeps by measure the chromatic value that sheet obtained of multiple color in advance under a plurality of temperature.By based on the color matching LUT under these chromatic values generations and the renewal arbitrary target temperature, realized the high-precision color matching under the arbitrary target temperature.
With the functional unit rough classification of printer apparatus 2 is controller unit 11 and engine unit 12.Controller unit 11 comprises color matching unit 111, alignment unit 112, color matching LUT generation unit 71 and chromatic value temperature correction unit 114.Notice that controller unit 11 comprises various other functional units that are associated with image processing, but will not provide the explanation with the not directly related unit of present embodiment.
Chromatic value temperature correction unit 114 is carried out temperature correction by the target temperature and the media type that use designating unit 21 appointments to the chromatic value of measuring in advance, generates the chromatic value under the target temperature.
Chromatic value under the target temperature after color matching LUT generation unit 71 use chromatic value temperature correction unit 114 are proofreaied and correct generates the color matching LUT 1111 in the color matching unit 111.
Notice that engine unit 12 forms based on carry out image from the output valve of controller unit 11, but the establishment of color matching LUT in a second embodiment is not particularly related to this operation in handling.
The detailed configuration of chromatic value temperature correction unit 114 below will be described.As shown in Figure 2, chromatic value temperature correction unit 114 comprises designating unit 21, memory cell 22 and arithmetic element 23.
As shown in Figure 4, designating unit 21 comprises target temperature designating unit 41 and media type designating unit 42.Target temperature designating unit 41 makes the user can specify desired target temperature.For example, when the outdoor observation output image of user in cold, he or she specifies the ambient temperature (for example, 0 ℃) of this moment as target temperature.The media type that uses when media type designating unit 42 specifies in output image.For example, can indicate intended target temperature and media type according to the user, realize designating unit 21 by on the front panel of PC or printer, showing user interface (UI) shown in Figure 5 thereby making.
As shown in figure 11, the generation data 31 and the default chroma data 33 of memory cell 22 memory features of second embodiment.These two classes data include temperature, CMYK value and spectral reflectance values.Identical with first embodiment, generate the chromatic value under the target temperature that data 31 comprise that chromatic value temperature correction unit 114 generates.Default chroma data 33 comprises by measuring the data that sheet obtained that export the multiple color on the various media under a plurality of temperature.
Color matching LUT creates processing
The generation that color matching LUT 1111 in the printer apparatus 2 of second embodiment is described below with reference to the flow chart of Fig. 8 is handled.
In step S801, the user uses the target temperature designating unit 41 intended target temperature T in the chromatic value temperature correction unit 114
tIn step S802, the medium that uses when user's working medium type designating unit 42 specifies in output image.
In step S803, arithmetic element 23 generates target temperature T
tUnder sheet chromatic value R
t(λ), and with these sheet chromatic values R
t(λ) be stored in turn in the memory cell 22 as the sheet chromatic value 312 that generates in the data 31.As this operation method, for example, use following formula (4).
As the parameter in the formula (4), use as default chroma data 33 shown in Figure 11 and remain on first chromatic value 333 and second chromatic value 334 in the memory cell 22.That is to say, use first temperature T
1, second temperature T
2, the sheet spectral reflectivity R under this first temperature
1(λ) and this second temperature under sheet spectral reflectivity R
2(λ).
In step S804, the generation of the sheet chromatic value under target temperature among all sheet repeating step S803 is handled.
When all sheets are finished the generation of the sheet chromatic value under the target temperature, in step S805, create color matching LUT 1111.More specifically, color matching LUT generation unit 71 is created new color matching LUT 1111 based on the sheet chromatic value 312 of the multiple color under the target temperature of being stored in the generation data 31 in the memory cell 22.In step S806, utilize this new color matching LUT 1111 to upgrade color matching unit 111.
As mentioned above,, keep by under a plurality of temperature, measuring the chromatic value that sheet obtained of multiple color in advance at the medium that comprises fluorescent whitening agent, and generate color matching LUT under the desired target temperature based on these chromatic values according to second embodiment.Then, can be at the high-precision color matching under this media implementation arbitrary target temperature.
Note, first and second embodiment illustration the chromatic value in the electro photography printer apparatus.Yet certainly, the present invention can be applicable to the printing device of other system.
First and second embodiment illustration be used as the spectral reflectivity of chromatic value, but can use the value on XYZ value or other color space.
Other embodiment
Can also be by the program reading and carry out on the storage device to be write down with the computer (the perhaps device of CPU or MPU etc.) of the system or equipment of the function of carrying out the foregoing description and realize aspect of the present invention by the following method, wherein, by the computer of system or equipment by the program for example reading and carry out on the storage device to be write down to carry out the function of the foregoing description, carry out the step of this method.For this purpose, for example, provide this program to computer via network or from various types of recording mediums (for example, computer-readable medium) as storage device.
Although the present invention has been described with reference to exemplary embodiments, should be appreciated that, the invention is not restricted to disclosed exemplary embodiments.The scope of appended claims meets the wideest explanation, to comprise all this class modification and equivalent structure and functions.
The application requires the priority of the Japanese patent application 2008-257787 of submission on October 2nd, 2008, comprises its full content by reference at this.
Claims (14)
1. image processing equipment comprises:
The first medium chromatic value obtains parts, is used to obtain by measure the first medium chromatic value that medium obtained that comprises fluorescent whitening agent under first temperature;
The second medium chromatic value obtains parts, is used to obtain by measure the second medium chromatic value that described medium obtained under second temperature;
The sheet chromatic value obtains parts, is used to obtain by measure the reference plate chromatic value that sheet obtained of the multiple color that forms on described medium under described second temperature;
Target temperature obtains parts, is used to obtain target temperature;
Medium chromatic value estimation section is used for based on described first medium chromatic value and the described second medium chromatic value, estimates the 3rd medium chromatic value that is obtained when measuring described medium under described target temperature; And
Sheet chromatic value estimation section, be used for based on the described second medium chromatic value, described the 3rd medium chromatic value and described reference plate chromatic value, estimate the sheet chromatic value that is obtained when when measuring the sheet of the described multiple color that on described medium, forms under the described target temperature.
2. image processing equipment according to claim 1 is characterized in that, described second temperature be adjacent after forming the sheet of described multiple color the temperature of described medium.
3. image processing equipment according to claim 1 and 2 is characterized in that, also comprises:
Holding member is used for keeping in advance the described first medium chromatic value,
Wherein, the described first medium chromatic value obtains parts and obtains the described first medium chromatic value that keeps in the described holding member.
4. image processing equipment according to claim 3 is characterized in that, also comprises:
Media type obtains parts, is used to obtain the type of described medium,
Wherein, the described first medium chromatic value obtains parts and obtains the type of the described medium that parts obtain according to described media type, obtains the described first medium chromatic value that keeps in the described holding member.
5. according to claim 3 or 4 described image processing equipments, it is characterized in that described holding member also keeps the described second medium chromatic value, and
The described second medium chromatic value obtains parts and obtains the described second medium chromatic value that keeps in the described holding member.
6. according to each described image processing equipment in the claim 1 to 5, it is characterized in that described target temperature obtains parts and obtains described target temperature based on user's indication.
7. according to each described image processing equipment in the claim 1 to 6, it is characterized in that described first medium chromatic value and the described second medium chromatic value and described reference plate chromatic value are the values of measuring under the light source of ultraviolet region comprising.
8. image processing equipment comprises:
Holding member is used to keep by measure first chromatic value and second chromatic value that sheet obtained of the multiple color that forms on the medium that is comprising fluorescent whitening agent respectively under first temperature and second temperature;
Target temperature obtains parts, is used to obtain target temperature; And
Sheet chromatic value estimation section is used for described first chromatic value and described second chromatic value that keep based on described holding member, the sheet chromatic value that obtains when estimating the sheet when the described multiple color that forms in measurement under the described target temperature on described medium.
9. according to each described image processing equipment in the claim 1 to 8, it is characterized in that, also comprise:
The image rectification parts are used for the sheet chromatic value that estimates based on described chromatic value estimation section, and correction will form the view data of image.
10. image processing equipment according to claim 9 is characterized in that, described image rectification parts are created checking list based on the sheet chromatic value that described chromatic value estimation section estimates, and proofread and correct described view data based on described checking list.
11. a color processing method may further comprise the steps:
The first medium chromatic value obtaining step is used to obtain by measure the first medium chromatic value that medium obtained that comprises fluorescent whitening agent under first temperature;
The second medium chromatic value obtaining step is used to obtain by measure the second medium chromatic value that described medium obtained under second temperature;
Sheet chromatic value obtaining step is used to obtain by measure the reference plate chromatic value that sheet obtained of the multiple color that forms on described medium under described second temperature;
The target temperature obtaining step is used to obtain target temperature;
Medium chromatic value estimating step is used for based on described first medium chromatic value and the described second medium chromatic value, estimates the 3rd medium chromatic value that is obtained when measuring described medium under described target temperature; And
Sheet chromatic value estimating step, be used for based on the described second medium chromatic value, described the 3rd medium chromatic value and described reference plate chromatic value, estimate the sheet chromatic value that is obtained when when measuring the sheet of the described multiple color that on described medium, forms under the described target temperature.
12. the color processing method in the image processing equipment, described image processing equipment will remain in the holding member by first chromatic value and second chromatic value that sheet obtained of measuring the multiple color that forms on the medium that is comprising fluorescent whitening agent under first temperature and second temperature respectively, and described color processing method may further comprise the steps:
The target temperature obtaining step is used to obtain target temperature; And
Sheet chromatic value estimating step is used for described first chromatic value and described second chromatic value that keep based on described holding member, the sheet chromatic value that obtains when estimating the sheet when the described multiple color that forms in measurement under the described target temperature on described medium.
13. a program is used to make computer to carry out according to claim 11 or 12 described color processing methods.
14. a computer-readable recording medium, it stores program according to claim 13.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008257787A JP5123809B2 (en) | 2008-10-02 | 2008-10-02 | Image processing apparatus and color processing method |
| JP2008-257787 | 2008-10-02 | ||
| PCT/JP2009/067285 WO2010038880A1 (en) | 2008-10-02 | 2009-09-28 | Image processing apparatus and color processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102172012A true CN102172012A (en) | 2011-08-31 |
| CN102172012B CN102172012B (en) | 2014-06-18 |
Family
ID=42073636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980139474.1A Expired - Fee Related CN102172012B (en) | 2008-10-02 | 2009-09-28 | Image processing apparatus and color processing method |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US8610960B2 (en) |
| EP (1) | EP2351349A4 (en) |
| JP (1) | JP5123809B2 (en) |
| CN (1) | CN102172012B (en) |
| CA (1) | CA2736561A1 (en) |
| WO (1) | WO2010038880A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110177188A (en) * | 2016-08-09 | 2019-08-27 | 柯尼卡美能达株式会社 | Image formation system |
| CN110426926A (en) * | 2016-02-25 | 2019-11-08 | 柯尼卡美能达株式会社 | Image forming apparatus and storage medium |
| CN112233605A (en) * | 2020-10-28 | 2021-01-15 | 合肥京东方光电科技有限公司 | Color gamut adjusting method and device, electronic equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BRPI0920719A2 (en) * | 2008-10-02 | 2015-12-29 | Canon Kk | image processing apparatus, color processing method, and computer readable storage medium. |
| JP5106690B2 (en) | 2009-03-11 | 2012-12-26 | キヤノン株式会社 | Image processing apparatus and color processing method |
| US20130158929A1 (en) * | 2010-09-18 | 2013-06-20 | Hewlett-Packard Development Company, L.P. | Optical Measurement Device Calibration |
| JP6056047B2 (en) * | 2012-12-05 | 2017-01-11 | コニカミノルタ株式会社 | Image forming apparatus |
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| JP3776492B2 (en) * | 1995-03-13 | 2006-05-17 | 大日精化工業株式会社 | Colorimetric correction method |
| DE69632499T2 (en) * | 1995-03-13 | 2005-05-12 | Dainichiseika Color & Chemicals Mfg. Co., Ltd. | Method for determining the colorimetric value |
| JP3555706B2 (en) | 1995-03-13 | 2004-08-18 | 大日精化工業株式会社 | Correcting colorimetric values |
| JPH09184762A (en) * | 1995-12-28 | 1997-07-15 | Kawasaki Steel Corp | Color measuring device and method |
| JP2000088651A (en) * | 1999-10-20 | 2000-03-31 | Minolta Co Ltd | Colorimetric system |
| JP4261761B2 (en) * | 2000-10-31 | 2009-04-30 | 富士フイルム株式会社 | Colorimetry method |
| GB0126065D0 (en) | 2001-10-31 | 2001-12-19 | Elam T Ltd | Document authentication |
| JP2004328473A (en) * | 2003-04-25 | 2004-11-18 | Fuji Photo Film Co Ltd | Sheet for color calibration, color calibration method, and image recorder |
| JP2006287281A (en) * | 2005-03-31 | 2006-10-19 | Brother Ind Ltd | Output data generating apparatus and output data generating program |
| JP4522346B2 (en) | 2005-09-09 | 2010-08-11 | キヤノン株式会社 | Color processing method and apparatus |
| JP5070769B2 (en) * | 2006-08-29 | 2012-11-14 | 富士ゼロックス株式会社 | Image processing apparatus, program, and color conversion condition setting method |
| JP4972014B2 (en) | 2008-03-04 | 2012-07-11 | キヤノン株式会社 | Image processing apparatus and image processing method |
| JP5142890B2 (en) | 2008-08-27 | 2013-02-13 | キヤノン株式会社 | Image processing method and image processing apparatus |
| JP2010056794A (en) | 2008-08-27 | 2010-03-11 | Canon Inc | Chart for multi-color calibration, and image processing method and image processing apparatus using the chart |
| JP5065204B2 (en) | 2008-08-28 | 2012-10-31 | キヤノン株式会社 | Color measuring method, color measuring device and recording medium |
| JP5268542B2 (en) * | 2008-10-02 | 2013-08-21 | キヤノン株式会社 | Image processing apparatus and color processing method |
| JP5632698B2 (en) | 2009-10-30 | 2014-11-26 | キヤノン株式会社 | Color processing apparatus and method |
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2008
- 2008-10-02 JP JP2008257787A patent/JP5123809B2/en not_active Expired - Fee Related
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2009
- 2009-09-28 WO PCT/JP2009/067285 patent/WO2010038880A1/en active Application Filing
- 2009-09-28 EP EP09817911A patent/EP2351349A4/en not_active Withdrawn
- 2009-09-28 CA CA2736561A patent/CA2736561A1/en not_active Abandoned
- 2009-09-28 US US13/061,683 patent/US8610960B2/en not_active Expired - Fee Related
- 2009-09-28 CN CN200980139474.1A patent/CN102172012B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426926A (en) * | 2016-02-25 | 2019-11-08 | 柯尼卡美能达株式会社 | Image forming apparatus and storage medium |
| CN110426926B (en) * | 2016-02-25 | 2021-10-15 | 柯尼卡美能达株式会社 | Image forming apparatus and storage medium |
| CN110177188A (en) * | 2016-08-09 | 2019-08-27 | 柯尼卡美能达株式会社 | Image formation system |
| CN112233605A (en) * | 2020-10-28 | 2021-01-15 | 合肥京东方光电科技有限公司 | Color gamut adjusting method and device, electronic equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| US8610960B2 (en) | 2013-12-17 |
| EP2351349A4 (en) | 2012-07-04 |
| CA2736561A1 (en) | 2010-04-08 |
| EP2351349A1 (en) | 2011-08-03 |
| JP2010088059A (en) | 2010-04-15 |
| US20110164287A1 (en) | 2011-07-07 |
| WO2010038880A1 (en) | 2010-04-08 |
| JP5123809B2 (en) | 2013-01-23 |
| CN102172012B (en) | 2014-06-18 |
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